Method of spinning yarn.



R. OROMPTON.

METHOD OF SPINNING YARN.

APPLICATION FILED JULY 25, 1912.

Patented Apr. 29, 1913.

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RANDOLPH caomr'rou, or msmaaoao, new namrsmss.

METHOD OF SPINNING YARN.

Specification of Letter: latent.

Patented Apr. 29, 1 913.

Application filed July 95, 1918. Serial No. 711,414.

To all whom, it may concern:

Be it known that I, RANDOLPH CRoMr'roN,

IiiUnited States Patent No. 914,703 granted to me March 9, 1909 I show ashuttle e ui ped with means to sever the yarn drawn 0% fiom the fillingcarrier when a reversal in the direction of winding of the yarn isreached. The filling carrier wound for use in connection with sucha-shuttle has a few winds laid thereon in one. direction sufficient forone or more picks of the shuttle,

across the lay, and the remaining winds of filling on the fillingcarrier were wound in a reverse direction. The mechanism shown anddescribed in my patent operates in the loom with great accurac and withentire satisfaction, but the practical objection to its extended use hasbeen due tothe fact that after the yarn has been spun upon a set offilling carriers in usual manncr it must be ro-wound upon a second setof filling carriers by means of a winding machine, in which the fillingcarriers are rotated first in one direction and then in the reversedirection. Heretofore it has not been possible to spin the yarn directlyupon the yarn carrier with two windings in reverse directions, becausethe reversal of the winding reversed the twist in the am and therebyweakened and caused breakage of the yarn. In my efforts to overcome theobjections hereinbefore noted I have discovered that b a simplemanipulation of the filling carruns or bobbins in the spinning frameafter the initial or primary winding of yarn is spun I can proceed withthe spinning of t e secondary or final winding, in a reverse direction,and without any xalteration for variation in the twist of the yarn. Bymy present invention I am thus able to spin the yarn directly upon thefilling carriers with two windings in reverse directions but with thesame twist, so that the yarn is of uniform strength throughout. I amalso able, by my present invention, to spin the yarn on any usual orwell known form of ring spinning frame.

The novel features of my invention will be described in the subjoinedspecification and articular-1y pointed out in the following 0 aims.

igure 1 is a view of a suflicient portion of a usual ring spinning frameshowing the filling carriers ositioned for the winding thereu on of tlieinitial winding of the yarn: ig. 2 is a similar view, but showing thefilling carriers inverted and in readiness for the secondary or finalwinding of the yarn thereupon, but before the rail is dopressed. Fig. 3is an enlarged view in elevation of a filling carrier with the twowindin s of yarn thereupon.

eferring to Figs. 1 and 2, 1 indicates a spindle rai, 2 the verticallyreciprocating rm -rail, 3 rings mounted on the ring-rail an havingavelers 4, through whici the yarn 6 is on from the usual drawing rolls(not shown) to the filling carrier or bobbin, and at 6.1 have shownrotating spindles mounted on the rail 1 and provided with suitablewhirls 7, all of well known'or usual construction in ring spinningframes.

In accordance with my present invention I place the filling carriers orbobbins 8 on the spindles with their butt ends uppermost, and the frameis started, with the ring-rail in proper position to lay a primary orinitial winding 0, Fig. 1, of yarn upon the filling carrier at thedesired distance from the butt end thereof. A suitable amount of yarn isso wound, sufficient for one or more picks of the shuttle across thelay, and then the frame is stopped. I now dotf the frame, removing theartly wound filling carriers from the spint les, and I invert or turnthe filling carriers end for end, and replace them upon the spindleswith their tips uppermost, as is usual, see Fig. 2. The frame is nowstarted up and the spinning opera.- tion is resumed, and a secondary orfinal winding 10 of yarn is laid upon the filling carriers until theyare properly filled, as shown in Fig. 3, whereupon the oieration iscompleted and the frame is doil'ed, the filling carriers then beingready to be used in the loom. It will be observed that no change is madein the direction of rotation of the fillin carriers by my method nor isthere any a teration in the relationship between the various parts ofthe spinning frame as the yarn is delivered. It is customary to windyarn with the ri ht hand wind, and it is so laid upon the fil lingcarrier 8 when the primary winding 9 is spun thereupon, but when saidfilling carrier is removed from the spindle and inverted it will beobvious that the yarn will have the left hand wind when drawn oil in theloom shuttle. The secondary winding 10 is laid with the right hand windand it so remains, but the inversion of the filling carrier between theinitial 'am final windings causes said windings to be laid with the windin reverse directions, as will be apparent. nasinuch, however, as thereis no chan e in the direction of rotation of the spind e or in the leadof the yarn from the ring to the fillin carrier there is no change orvariation in the twist, either as to its direction or amount, and inconsequence the twist of the yarn is the same, and uniform,'from thebeginning to the end of the operation of spinnin 'lhe time requisite todofi and invert the filling eariers after the primary winding has beenlaid is short,.the doiling is easily accomplished, and if performed withreasonable care no ends will be broken as all that is necessary is toprovide enough slack yarn for the proper inversion of the fillingcarrier. 1

By the process hereinbefore-set forth 1 get a filling carrier having twowindings of yarn thereupon with the winds in reverse directions and withthe same twist throughout the winding, and without requiring any changein the structure-of the usual ring spinning frame, the filling carrierspun in accordance with my invention being at once ready for use in theloom shuttle in accordance with the disclosures in my patenthereinbefore referred to.

Copies of this patent mav be obtained for Havin fully described myinvention, what I c aim as new and desire to secure by Letters Patentis:

1.. The herein described method of laying arn upon a filling carrier,which consists in spinning a desired quantity of yarn upon the fillingcarrier, arresting the s innin and turnin the filling carrier end or enand resuming the spinning to com lete the laying of yarn upon theinverted fil ing carrier, whereby the two windin s are spun with thesame twist but with t e winds in opposite directions.

2. The herein described method of spinning arn upon a fillin carrier,which consists in rotating the filling carrier and spinning a desiredquantity of yarn thereupon, stoiping the rotation of the filling carrieran turning it end for end, resuming the rotation of the filling carrierin the original direction, and completing the spinning o the yarnthereupon, whereby the primary and secondary windings will be laid inopposite directions but with the same twist throughout.

3. The herein described method of spinning yarn upon a filling carrier,which consists in placing the filling carrier on .a spindle, rotating tm latter, and laying a desired volume of yarn, with a predetermined twist, upon the ii ling carrier, stopping the spindle and inverting thefilling carrier thereon, resuming the rotation of the spindle and theinverted filling carrier, and laying a second volume of yarn upon thefilling carrier with the original twist, the inversion of the fillingcarrier causing the two volumes of yarn to be wound thereupon in oposite directions.

"In testimony whereof, l have signed my name to this specification, inthe presence oi two subscribing witnesses.

RANDOLPH CROMPTON.

\Vitnesses JOHN C. EDWARDS,

FREDERICK S. GREEN LEAF.

iive cents each, by addressing the Commissioner of rateiits Washington,D. 0.

